CVE-2017-11362

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-14. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

In PHP 7.x before 7.0.21 and 7.1.x before 7.1.7, ext/intl/msgformat/msgformat_parse.c does not restrict the locale length, which allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) or possibly have unspecified other impact within International Components for Unicode (ICU) for C/C++ via a long first argument to the msgfmt_parse_message function.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
50(Track)
EG Risk 50/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation3% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
3%
EPSS %ILE
86%
KEV
Not listed

Published

July 17, 2017

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Sep 15, 2026
Patch available. Sources: redhat.
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20180112-0001/
generic

PHP: Multiple vulnerabilities (GLSA 201709-21) — Gentoo security

https://security.gentoo.org/glsa/201709-21
generic

PHP :: Bug #73473 :: Stack Buffer Overflow in msgfmt_parse_message

https://bugs.php.net/bug.php?id=73473
redhat Patch Available
https://access.redhat.com/errata/RHSA-2018:1296

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuphp7.0-fpm (7.0.22-0ubuntu0.17.04.1) @ zesty2026-05-20ubuntu
ubuntulibphp5-embed (5.5.9+dfsg-1ubuntu4.29+esm2) @ trusty2026-05-20ubuntu
redhatrh-php70-php-0:7.0.27-1.el72018-05-03redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(3)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 5× in last 7d / 23× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 159 total refreshes for this CVE.

  1. 2026-09-19 15:36 UTCEPSS rescore
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  22. 2026-07-25 13:11 UTCOSV refresh
  23. 2026-07-23 14:15 UTCEPSS rescore
  24. 2026-07-23 01:26 UTCEG score recompute
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  47. 2026-07-08 07:35 UTCOSV refresh
  48. 2026-07-07 13:42 UTCEPSS rescore
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  75. 2026-06-15 17:45 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2017-11362?
CVE-2017-11362 is a critical vulnerability published on July 17, 2017. In PHP 7.x before 7.0.21 and 7.1.x before 7.1.7, ext/intl/msgformat/msgformatparse.c does not restrict the locale length, which allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) or possibly have unspecified other impact within International…
When was CVE-2017-11362 disclosed?
CVE-2017-11362 was first published in the National Vulnerability Database on July 17, 2017, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-11362 actively exploited?
CVE-2017-11362 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3% probability of exploitation in the next 30 days, which ranks it in the top 13.6% of all scored CVEs.
What is the CVSS score of CVE-2017-11362?
CVE-2017-11362 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-11362?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-11362, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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